Original description:

The root div class containing the content is "Content" , and the required stylesheets are not inlined or referenced in the generated page.

There was a similar problem in previous Confluence versions (2.6.x, 2.7.x), where the root css class was wrong, but it was easy to fix in the css only. This is apparently not as easy in confluence 2.8

Since we've moved to externalise our CSS and JS, we need a remote API method that allows people to embed Confluence content in other locations. To do this properly, they'll need the list of CSS and JS resources that a given page requires.